<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>library</title>
</head>
<body>
    <h1>图书列表</h1>
    <ul>
        {% for book_one in book_all %}

            <li>
                <a href="/{{ book_one.id }}/">{{ book_one.title }}</a>
            </li>

        {% endfor %}


    </ul>
</body>
</html>